摘要
本文在NRTL模型的基础上补充了超额熵对超额吉布斯自由能的贡献项,并导出了相应的活度系数方程。该方程在关联二元汽液、液液平衡数据中求得的能量作用参数的唯一性甚佳;用它单从二元数据推算三元液液平衡的推算精度较高,且对含水和不含水体系均适用。本文还测定了“水—甲基异丁基酮”在不同温度下的溶解度数据以及35℃下“水—丙酮—甲基异丁基酮”的连结线数据。
The excess entropy contribution to the excess Gibbs freeenergy sattached to the NRTL model,and the corresponding activitycoefficient equation is deduced.When this new equation is used tocorrelate the VLE and LLE data of binary systems,only one pairof energy parameters is obtained for each system.When it is usedto predict the tie-line data of ternary systems only from binarydata,the accuracy of prediction is rather high for systems bothcontaining water and not containing water.The solubility data for the system“water-MIBK”at differenttemperature,and the tie-line data for“water-acetone-MIBK”at35℃ are also determined.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
1992年第1期99-107,共9页
Journal of South China University of Technology(Natural Science Edition)
关键词
溶液理论
活度系数
汽液平衡
solution theory
vapour liquid equilibrium
liquid-liquid equilibrium
/local concentration
